GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Arc B580 is the clear winner, offering 108.5% better value than Arc A770.
On raw speed the Arc B580 comes out noticeably faster — about 10% ahead of the Arc A770. It also wins on performance-per-dollar, making it the cleaner choice when you can afford it.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Arc B580 vs Arc A770: In-Depth Breakdown
Performance: Arc B580 vs Arc A770
The Arc B580 is noticeably faster, around 10% ahead of the Arc A770. Both cards sit in the same broad class, well suited to 1080p.
Price & Value
The Arc B580 currently lists from $1,636 BRL, $1,465 BRL less than the Arc A770 at $3,102 BRL. Because it's both faster and competitively priced, the Arc B580 wins on performance-per-dollar by about 108%. The Arc B580 still sits about $1,388 BRL above its $248 BRL MSRP. The Arc A770 still sits about $2,773 BRL above its $329 BRL MSRP.
Power & Efficiency
At 190W against 225W, the Arc B580 is both the lower-power and the more efficient card, making it the easier build to cool and power. Its more modern Battlemage architecture on a TSMC N5 process is part of why it does more with each watt.
VRAM & Future-Proofing
The Arc A770 carries 16GB versus 12GB on the Arc B580. The extra 4GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers. The Arc A770's memory is also faster — 560 GB/s versus 456 GB/s (256-bit vs 192-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Arc B580 is roughly 2 years newer than the Arc A770 (Battlemage vs Alchemist), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: Arc A770 or Arc B580?
The Arc B580 is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the Arc A770 if you find it at a steep discount.
Frequently Asked Questions
Is the Arc B580 better than the Arc A770?
Which is better for 4K gaming, the Arc A770 or the Arc B580?
Is the Arc A770 worth the extra $1,465 BRL over the Arc B580?
Does the Arc A770 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | Arc A770 | Arc B580 |
|---|---|---|
| Architecture | Alchemist | Battlemage |
| Process Node | TSMC N6 | TSMC N5 |
| CUDA Cores (Shading Units / Shading Units) | 4,096✓ | 2,560 |
| Ray Tracing Cores | 32✓ | 20 |
| Tensor / AI Cores | 512✓ | 160 |
Clock Speeds
| Specification | Arc A770 | Arc B580 |
|---|---|---|
| Base Clock | 2,100 MHz | 2,670 MHz✓ |
| Boost Clock | 2,400 MHz | 2,850 MHz✓ |
Memory
| Specification | Arc A770 | Arc B580 |
|---|---|---|
| VRAM Capacity | 16 GB✓ | 12 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 256-bit✓ | 192-bit |
| Memory Speed | 17.5 Gbps | 19 Gbps✓ |
| Bandwidth | 560 GB/s✓ | 456 GB/s |
Connectivity & Power
| Specification | Arc A770 | Arc B580 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x8 |
| TDP | 225 W | 190 W✓ |
| Power Connectors | 2x 8-pin | 1x 8-pin |
| Released | Oct 2022 | Dec 2024 |
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